Sewage treatment device and method

Abstract

The invention provides a sewage treatment device and method. The sewage treatment device comprises a triangular supporting frame, three horizontal supporting plates are evenly welded to the inclined surface of the triangular supporting frame, each horizontal supporting plate is of a stepped structure, the upper surfaces of the three horizontal supporting plates are sequentially provided with a sedimentation tank, a reaction tank and a filtering tank from top to bottom, and a water suction pump is connected to one side of the triangular supporting frame through bolt; a rotating connection pipeis driven by a motor to rotate, gas diffusion is more uniform through the rotation of the rotating connection pipe, and therefore a reaction is more thorough; moreover, the rotating connection pipe can drive water stirring blades to rotate, sewage can be stirred by the water stirring blades, and the reaction is more thorough; the sewage can be adsorbed three times through a diatomaceous earth adsorption layer, a zeolite adsorption layer and an activated carbon adsorption layer, so that the adsorption effect is better. The sewage treatment device and method have the advantages that the structure is simple, the steps are simple, the mixing efficiency is high, the reaction is more thorough, and the demands of people can be met.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device and method. Background technique [0002] For the sewage with high nitrogen and phosphorus content discharged from animal husbandry, food, chemical plants, etc., a high level of nitrogen treatment or phosphorus treatment technology is required. As nitrogen treatment, known nitrifying liquid circulation method, endogenous denitrification method, intermittent exposure Gas method and other methods, in the nitrifying liquid circulation method, the nitrogen removal rate depends on the circulation ratio. Therefore, in order to obtain a higher nitrogen removal rate, the cycle rate must be increased, but the actual nitrogen removal rate limit is about 80%, but the existing device has a complex structure and uneven mixing during mixing, resulting in incomplete reaction and cannot satisfy people. demand. Contents of the invention [0003] The technica...

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Problems solved by technology

Therefore, in order to obtain a higher nitrogen removal rate, the cycle rate must be increased, but the actual nitrogen removal rate limit is about 80%, but the existing device has a complex structure and uneven mixing during mixing, resulting in incomplete reaction and cannot satisfy people. needs

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